privatewelldata / Certified labs – California ELAP accreditation

Metropolitan Water District of Southern California - Robert B. Diemer Water Treatment Plant Laboratory

Metropolitan Water District of Southern California - Robert B. Diemer Water Treatment Plant Laboratory is on the official list: California ELAP accreditation. Updated 2026-10-17.

Yorba Linda, California

⚠ Likely serves public water systems only. Call ahead: certification lists include some labs that only test for public water systems.

Certified by
California ELAP accreditation
Official scope
Lab type: Public Water System (Municipal). ELAP certificate 1618-S2
Contact
3972 Valley View Avenue, Yorba Linda, CA, 92886
(909) 392-5240
Source
California Water Boards – ELAP drinking water accredited laboratories
Licence
Public record (California State Water Resources Control Board)
Record refreshed
2026-10-17

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